I feel sorry for the air stewards, bus drivers, who are involved in coronovirus

[EnidBlyton]

How to they remain risk free?
or are they paid extra for the trips?

I think people in those jobs are inevitably exposed to lots of germs, don't see how it can be avoided but obviously putting a known case of coronavirus with no warning or precautions is grossly irresponsible.

Of course the doctors are nurses deserve sympathy too, but air stewards and bus drivers are not normally in such situations